I know this is on here, but with the search function down, it would be helpful if anyone who has already installed the gressy boost gauge give me some advice. I have done it before, but it was a while back and i cna't remember how i did it. There are 4 wires (red, orange, black, and geen (i think). Anyways, the instructions on mkiv.com just have 2 wires, so im not sure what to do w/ the others. If anyone has hooked up an electrical greddy boost gauge, can you please tell me where to tap the 4 wires into. Thanks.